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You may still have air in the system
Try filling the reservoir again and bleed out the air at the slave cylinder
Use a friend to pump up the clutch pedal then get him to hold the pedal down while you bleed the slave cylinder.
Most parts stores have a pressurizer for the brake fluid. You need one. Set up the pressurizer according to the directions and pressurize the system. Open the bleed valve closest to the slave cylinder. Allow enough fluid to escape but do not run the master cylinder dry, otherwise you will have to bleed the entire system. Google "DIY + how to bleed a slave cylinder and the correct answer should be there.
you may just open the bleeder, and let it gravity bleed. make sure on the master cylinder that the piston is coming all the way back when the pedal is all the way back/up. there's an adjustment for that, on the rod connecting the clutch pedal to the master cylinder.
Probably not. Bleeding clutch slave cylinders is tricky because you cant "pump it up". The master cylinder has no static valve so the best way to bleed the slave cyl. is to use gravity. Fill the master cylinder reservoir and open the bleed valve on the slave cyl. Allow fluid to drip into an open can until there's no trace of air. Close bleed valve and try clutch. If still no pedal, repeat the process. This is quite an acceptable procedure.
Thn the problem is the clutch master cylinder, it should build up pressure, ok try out this, remove the pipe which is going to the slave cylinder either from the clutch master cylinder or at the clutch slave cylinder and get someone to pump the pedal while you block the pipe and see if there is fluid thrown out with pressure.If there is pressure there thn fit back the pipe and refill the reserviour wth brake fluid and open the bleeding nipple at the slave cylinder let some fluid pour out and tighten it and thn pump the pedal and retry bleeding.
If there is no pressure at the pipe thn its the clutch master cylinder.
Hope this helps!
i think youre doing the right thing. they are very stubborn to bleed because the hyd. line goes up high across back of engine before droppiing back down to slave cyl., trapping air. could try to gravity bleed by opening bleeder at slave, cap off of master cyl, full with fluid then it may start to come out after a bit. then try your process again. or can try to bleed at connections further up the line, working your way back to bleeder. hope this helps. be patient.
Bleeding the clutch is similar to bleeding brakes. You'd pump the clutch pedal several times to get the pressure up, and then open the bleeder on the slave cylinder (mounted down on the transmission). Repeat and add fluid as needed until no air comes out.
Two things - first off, some cars have more than one bleed point (the Nissan 300ZX is one of those), so be sure there is only the slave cylinder to bleed. Second, if it went right to the floor, something failed - either the slave cylinder or the master cylinder. Changing the slave is relatively easy - usually two bolts and it comes off, you put on a new one, and bleed it as described above. Often the slave cylinder is less than $30, so it's worth it to try changing it if you can't get the pedal to come back off the floor on its own. A clutch master is significantly more expensive and more difficult to change, so start cheap and easy and replace the slave cylinder if you can't pump the pedal to get pressure built up for a bleed.
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